Gadolinium oxyorthosilicate

Gadolinium oxyorthosilicate  Names

IUPAC name

dioxido(oxo)silane;gadolinium(3+);oxygen(2-)

Other names

* Gadolinium(III) oxyorthosilicate

Identifiers

CAS Number

* 12207-95-3 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 57449448

EC Number |

* 235-386-1

PubChem CID

* 44150499

CompTox Dashboard (EPA)

* DTXSID60924071

InChI

* InChI=1S/2Gd.O3Si.2O/c;;1-4(2)3;;/q2*+3;3*-2

Key: XEVCWPDRHSBFQW-UHFFFAOYSA-N

SMILES

* [O-2].[O-2].[O-][Si](=O)[O-].[Gd+3].[Gd+3]

Properties

Chemical formula

| Gd2O5Si
Molar mass | 422.58 g·mol−1
Density | 6.7 g/cm3
Melting point |  1,900 °C (3,450 °F; 2,170 K)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Gadolinium oxyorthosilicate (known as GSO) is a type of scintillating inorganic crystal used for imaging in nuclear medicine and for calorimetry in particle physics.[1]

The formula is Gd2SiO5. Its main properties are shown below:

Density (g/cm3) | 6.7

|

Melting Point (°C) | 1900
Radiation Length (cm) | 1.38
Decay Constant (ns) | 50-60
Light Yield (relative BGO=100%) | 110
Index of Refraction | 1.87
Peak Excitation (nm) | 350
Radiation Hardness (rad) | >106
Hygroscopic | No

## References

1. ↑ Suzuki, H.; Tombrello, T. A.; Melcher, C. L.; Peterson, C. A.; Schweitzer, J. S. (1994-08-01). "The role of gadolinium in the scintillation processes of cerium-doped gadolinium oxyorthosilicate" (in en). Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 346 (3): 510–521. doi:10.1016/0168-9002(94)90586-X. ISSN 0168-9002. Bibcode: 1994NIMPA.346..510S. https://dx.doi.org/10.1016/0168-9002(94)90586-X.

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Gadolinium compounds

Gadolinium(III)|

* GdF3
* GdCl3
* GdBr3
* Gd2O3
* Gd2O2S
* Gd2(SO4)3
* Gd(NO3)3
* Gd2(C2O4)3
* Gd3Ga5O12
* Gd2SiO5

| Organogadolinium(III)|

* Gd(C5H7O2)3

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